FPS Airsoft AEG Gear Box / Mech Box Cylinder Head version 3 made of ERGAL (TC36A).
Great Upgrade for any gear box.
Each FPS Cylinder head is made of ERGAL and it is also anodized for smooth surface finish.
Powerful built in UREPAN bumper that absorbs the shock from the piston head.
Suitable for AUG, G36 and any Version 3 Gear Box AEG.

100% MADE IN ITALY
100% MARUI COMPATIBLE